Ship construction



R. F. HARTU NG.

SHIP CONSTRUCTION.

APPLICATION FILED NOV. 20, 191.8.

1,343,392. Patented June 15,1920.

. I INVENTOR' IX Roeri f lzar'funy,

I BY I fiLm/u ATTORNEY ROBERT F. HARTUNG, OF CHICAGO, ILLINOIS.

SHIP CONSTRUCTION.

Application f led November 20, 1918. Serial No. 263,261.

To all whom it may concern:

Be it known that I, ROBERT F. HARTUNG, a citizen of the United States, residing at Chicago, in the county of Cook and State of Illinois, have invented certain new and useful Improvements in Ship Construction, of-

which the following is a specification;

This invention relates to wood ship-building and, more particularly, to improvements in the planking; and its object is to produce planking having a novel form of recesses or grooves in its edges and ends to receive the oakum whereby the fabricated vessel is maintained Water-tight and which will retain the calking material in place.

Due to the duty to which marine vessels are subjected in a sea-way and to exposure to wet and dry conditions, difiiculty is had in retaining the oakum in the various seams, requiring frequent calking and attention to prevent the oakum becoming loose.

With the present invention, the peculiar recesses provided in the adjacent edges of ship planking afford means whereby the above referred to difficulties are overcome.

The invention'consists in the novel construction and adaptation of devices, as will be hereinafter described and claimed.

In the accompanying drawings, Figure l is a transverse vertical sectional view of a portion of a marine vessel in which is embodied my invention. Fig. 2 is a fragmentary transverse section of the same to an enlarged scale. Fig. 3 is a perspective view of a portion of a plank shown detached.

The vessel, as shown in Fig. l, is comprised of a plurality offrames such as 5 extending across the keel 6 and connected by transverse beams. 7. Deck planking 8 is laid upon said beams and outside or skinplanking 9 is fastened to the bottom and outer sides of the respective frames. V

The planks are first cut to fit into the required place on the vessel and beveled as usual. That is to say, the planks, as 97in Fig. 2, adjacent to their inner or frame abutting surfaces 10, are cut to produce juxtaposed edge surfaces 11 and from there outwardly are beveled, as indicated .by broken lines as (Fig. 2),and into the result ing angular seam between surfaces 12 oakum has hitherto been driven. According to'the present invention, recesses are formed or provided intermediate the width of the surfaces 12; said recesses each being of an angular form with sides 13 and 14: disposed as shown. The sides 13. are disposed adjacent to the outer surfaces 15 of the plank, and

are substantially rectangular to the plane of the respective surfaces 12, thereby affording shoulders.

The end of each plank is, in like manner, preferably provided with surfaces 11 and 12 in which is a recesswith sides 13 and 14 arranged as shown in Fig. 3.

By thus forming the edges of the planks, the latter when secured in placeprovide between the contiguous planks triangular shaped cavities 16 communicating from the outside by tapering slots 18. The oakum 17 is driven through slots 18 by the calkers tools into cavities 16 to fill the same and prosides of the cavities. v

By such devices, it is apparent that the shoulder surfaces 13 serve to prevent the oakum coming out by reason of the planks shrinking or in the event of their working when a vessel is rocking or pitching. The spaces unoccupied by the oakum in trude into the seams at the inner and outer slots 18 should desirably be paid or filled with pitch or an equivalent, as a protection Specification of Letters Patent. Patented J une 15, 1920, I

to the oakum from exposure to water or the 7 weather.

The recess and other surfaces on the planks 'may be formed in a erwise.

planing machine or oth- What I claim, is

The combination of two planks, having opposing edges thereof abutting adjacent to their inner surfaces and beveled from such abutting portions to the outer'surfaces, re- 7 cesses provided in said edges intermediate the depths of the beveled portions thereof, 7

and fibrous calking material insaid recesses and in the spaces between the beveled sur faces above and below the recesses.

Signed at Seattle, Washington, this 13th PIERRE BARNES, E PETERSO N. Y 

